• Schmuller, Joseph. 2006. Teach Yourself UML in 24 Hours, 3rd ed., Indianapolis, IN: Sams Publishing.
• Booch, G., I. Jacobson, and J. Rumbagh. 2005. The UML Users Guide, 2nd ed., Boston, MA: Addison-Wesley.
• Lee, Richard, and William Tepfenhart. 2003. Practical Object-Oriented Development with UML and Java. Upper Saddle River, NJ: Prentice Hall.
• Ambler, Scott. 2003. The Elements of UML Style. Cambridge, United Kingdom: Cambridge University Press.
• Fowler, Martin. 2003. UML Distilled, 3rd ed. Boston, MA: Addison-Wesley Longman.
• Larman, Craig. May 1999. “What the UML Is—and Isn’t.” Java Report, 4(5): 20–24.
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